Conglomerate’s De Facto Holding Company More Than Doubles IPO Price

SEOUL—Samsung Group’s de facto holding company, Cheil Industries Inc., made its debut on South Korea’s main stock exchange at more than double its initial public offering price, as the conglomerate prepares for a transition of power.

Samsung has been executing a series of financial transactions this year to restructure its business, part of its efforts to minimize potentially high costs, such as inheritance taxes, linked to the...